8 GCS Commands
196
Version: 1.2.1
MS249E
C-863.12 Mercury Controller
Servo mode on: Use the MOV (p. 177), MVR (p. 179), GOH
(p. 157) commands or joystick control (p. 89).
Servo mode off: Use SMO (p. 188).
The servo mode must be switched on before reference
moves can be started with FRF (p. 155), FNL (p. 153) or FPL
(p. 154).
When the servo mode is switched off while the axis is
moving, the axis stops.
You can use a startup macro to configure the controller so
that the servo mode is switched on automatically after
switching on or rebooting. For further information, see
"Setting up a startup macro" (p. 106).
If the axis has a brake, setting the servo mode with SVO
influences the activation state of the brake:
▪
Switching on the servo mode deactivates the brake.
▪
Switching off the servo mode activates the brake.
When the servo mode is switched off, the brake can be
activated or deactivated with BRA (p. 132). Secure the
positioner against unintentional motion before you
deactivate the brake with BRA!
If a motion error occurs, the servo mode is switched off
and the brake is activated. For more information see
"Motion Errors" (p. 73).
SVO? (Get Servo Mode)
Description:
Queries the servo mode for the axes specified.
If arguments are not specified, queries the servo mode of
all axes.
Format:
SVO? [{<AxisID>}]
Arguments:
<AxisID> is one axis of the controller.
Response:
{<AxisID>"="<ServoState> LF}
where
<ServoState> is the current servo mode for the axis:
0 = servo mode off (open-loop operation)
1 = servo mode on (closed-loop operation)
Troubleshooting: Illegal axis identifier